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- Title
Evaluation of the psychrotrophic specific signatures for cspA gene and 16 S r DNA on the phenotype of Bacillus cereus sensu strictu.
- Authors
Montanhini, Maike T Maziero; Neto, Roberto Montanhini; Bittencourt, Juliana Vitória M; Pinto, José Paes de A N; Bersot, Luciano dos Santos
- Abstract
This study characterised the psychrotrophic genotypes and phenotypes behaviour of 63 strains of Bacillus cereus sensu stricto isolated from dairy products. The presence of the cspA gene signature and the 16 S r DNA mesophilic and/or psychrotrophic specific signatures was evaluated. Among the strains, 25 (39.7%) had the cspA gene signature, 38 (60.3%) had both mesophilic and psychrotrophic 16 S r DNA signatures, 24 (38.1%) had only mesophilic and one exhibited only psychrotrophic. No strain grew at 7 °C. The results indicate that the presence of psychrotrophic signatures for cspA gene or the 16S r DNA did not ensure a psychrotrophic behaviour on a B. cereus phenotype.
- Subjects
RECOMBINANT DNA; PSYCHROTROPHIC organisms; BACILLUS cereus; DAIRY microbiology; POLYMERASE chain reaction; DAIRY processing
- Publication
International Journal of Dairy Technology, 2014, Vol 67, Issue 1, p67
- ISSN
1364-727X
- Publication type
Article
- DOI
10.1111/1471-0307.12092